89c2f28e39
This patch is inspired by the 'minimize numa overhead' patch. It trades the use of subscripts for pointers to avoid gcc repeated subscript offset calculation bloat. Now, throughout the cpus_refresh function, a subscript will be resolved just once & this will (dramatically?) reduce the path-length taken for each and every frame! For example, a non-optimized compilation could produce 400+ fewer machine instructions through pointer usage. [ ok, optimized compiles only save 18+ instructions! ] Lastly, any residual 'symmetry only' crap is now gone! Signed-off-by: Jim Warner <james.warner@comcast.net>
COMPATIBILITY
This code is intended for use with Linux 2.6.xx, 3.x and
hopefully all future kernels.
INSTALLATION
If you are using git version of the project you need extra step.
./autogen.sh
After that, and everyone using .tar.xz version of procps-ng, can
do normal build. Read './configure --help' to select options for
your needs.
./configure
make
make install
If you have DejaGNU installed you can run optional test suite.
make check
HOW TO CONTRIBUTE
See Documentation/BUGS file.
PACKAGING
If you are a downstream maintainer (packager) for a Linux
distribution, please avoid causing troubles. This section
applies to you.
Avoid maintaining distribution specific patches. Send your
patches to upstream, where they are at least reviewed, if not
included.
Please forward bug reports. If your bug database is public and
busy enough to bother with, please make this known. Follow
Debian's lead in making the bug database easy to comment on via
email without need for an account.
For normal packages, ensure that you do not add debugging flags
to the CFLAGS variable.
UPSTREAM & BUG REPORTS
procps-ng <procps@freelists.org>